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相关论文: A SICA compartmental model in epidemiology with ap…

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We revisit the SICA (Susceptible-Infectious-Chronic-AIDS) mathematical model for transmission dynamics of the human immunodeficiency virus (HIV) with varying population size in a homogeneously mixing population. We consider SICA models…

种群与进化 · 定量生物学 2020-08-10 Cristiana J. Silva , Delfim F. M. Torres

We study the global dynamics of a SICA infection model with general incidence rate. The proposed model is calibrated with cumulative cases of infection by HIV-AIDS in Morocco from 1986 to 2015. We first prove that our model is biologically…

种群与进化 · 定量生物学 2019-08-12 El Mehdi Lotfi , Marouane Mahrouf , Mehdi Maziane , Cristiana J. Silva , Delfim F. M. Torres , Noura Yousfi

We propose a stochastic SICA epidemic model for HIV transmission, described by stochastic ordinary differential equations, and discuss its perturbation by environmental white noise. Existence and uniqueness of the global positive solution…

种群与进化 · 定量生物学 2018-05-30 Jasmina Djordjevic , Cristiana J. Silva , Delfim F. M. Torres

We investigate the celebrated mathematical SICA model but using fractional differential equations in order to better describe the dynamics of HIV-AIDS infection. The infection process is modelled by a general functional response and the…

We consider a time-delayed HIV/AIDS epidemic model with education dissemination and study the asymptotic dynamics of solutions as well as the asymptotic behavior of the endemic equilibrium with respect to the amount of information…

动力系统 · 数学 2021-08-10 Dawit Denu , Sedar Ngoma , Rachidi B. Salako

We will study a mathematical model of the human immunodeficiency virus (HIV) infection in the presence of combination therapy that includes within-host infectious dynamics. The deterministic model requires us to analyze asymptotic stability…

种群与进化 · 定量生物学 2017-09-04 Majid Jaberi Douraki

Ending the HIV/AIDS pandemic is among the Sustainable Development Goals for the next decade. In order to overcome the gap between the need for care and the available resources, better understanding of HIV epidemics is needed to guide policy…

应用统计 · 统计学 2020-09-03 Zhou Lan , Le Bao

It is the main purpose of this paper to introduce a graph-valued stochastic process in order to model the spread of a communicable infectious disease. The major novelty of the SIR model we promote lies in the fact that the social network on…

应用统计 · 统计学 2014-02-06 Charanpal Dhanjal , Stéphan Clémençon

In this paper, we propose an original complex network model for an epidemic problem in an heterogeneous geographical area. The complex network is constructed by coupling nonidentical instances of a HIV/AIDS epidemiological model for which a…

种群与进化 · 定量生物学 2019-11-14 Guillaume Cantin , Cristiana J. Silva

In this article, we consider an HIV/AIDS epidemic model with four classes of individuals. We have discussed about basic properties of the system and found the basic reproduction number $R_0$ of the system. The stability analysis of the…

动力系统 · 数学 2023-04-18 Nouar Chorfi , Salem Abdelmalek , Samir Bendoukha

As the global HIV pandemic enters its fourth decade, increasing numbers of surveillance sites have been established which allows countries to look into the epidemics at a finer scale, e.g. at sub-national level. However, the epidemic models…

应用统计 · 统计学 2014-11-18 Le Bao , Mary Mahy , Xiaoyue Niu , Tim Brown , Peter Ghys

Reliable estimation of spatio-temporal trends in population-level HIV incidence is becoming an increasingly critical component of HIV prevention policy-making. However, direct measurement is nearly impossible. Current, widely used models…

应用统计 · 统计学 2019-12-04 Timothy M Wolock , Seth R Flaxman , Jeffrey W Eaton

As the global HIV pandemic enters its fourth decade, increasing numbers of surveillance sites have been established which allows countries to look into the epidemics at a finer scale, e.g. at sub-national levels. Currently, the epidemic…

应用统计 · 统计学 2015-08-27 Le Bao , Xiaoyue Niu , Mary Mahy , Peter D. Ghys

An adequate near-optimal control problem for a stochastic SICA (Susceptible-Infected-Chronic-AIDS) compartmental epidemic model for HIV transmission with imprecise parameters is formulated and investigated. We prove some estimates for the…

最优化与控制 · 数学 2022-12-06 Houssine Zine , Delfim F. M. Torres

We propose a fractional order model for HIV/AIDS transmission. Local and uniform stability of the fractional order model is studied. The theoretical results are illustrated through numerical simulations.

最优化与控制 · 数学 2019-06-07 Cristiana J. Silva , Delfim F. M. Torres

In this article, we propose a network spread model for HIV epidemics, wherein each individual is represented by a node of the transmission network and the edges are the connections between individuals along which the infection may spread.…

生物物理 · 物理学 2007-08-29 Wen-Jie Bai , Tao Zhou , Bing-Hong Wang

Tuberculosis (TB) and human immunodeficiency virus (HIV) can be considered a deadly human syndemic. In this article, we formulate a model for TB and HIV transmission dynamics. The model considers both TB and acquired immune deficiency…

动力系统 · 数学 2014-07-15 Cristiana J. Silva , Delfim F. M. Torres

Pre-exposure prophylaxis (PrEP) consists in the use of an antiretroviral medication to prevent the acquisition of HIV infection by uninfected individuals and has recently demonstrated to be highly efficacious for HIV prevention. We propose…

最优化与控制 · 数学 2017-10-12 Cristiana J. Silva , Delfim F. M. Torres

The precise mechanism that causes HIV infection to progress to AIDS is still unknown. This paper presents a mathematical model which is able to predict the entire trajectory of the HIV/AIDS dynamics, then a possible explanation for this…

细胞行为 · 定量生物学 2015-03-19 Esteban A. Hernandez-Vargas , Dhagash Mehta , Richard H. Middleton

We propose a mathematical spatiotemporal epidemic SICA model with a control strategy. The spatial behavior is modeled by adding a diffusion term with the Laplace operator, which is justified and interpreted both mathematically and…

最优化与控制 · 数学 2022-07-12 Houssine Zine , Abderrahim El Adraoui , Delfim F. M. Torres
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